#366DC1#366DC1

#366DC1 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.1% C 0.144 H 258.7°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#366DC1
RGB	rgb(54, 109, 193)
HSL	hsl(216, 56%, 48%)
HSV	hsv(216, 72%, 76%)
CMYK	cmyk(72%, 43.5%, 0%, 24.3%)
CIE-LAB	lab(46.41, 10.57, -49.31)
CIE-LCH	lch(46.41, 50.43, 282.09°)
OKLab	oklab(54.11% -0.0281 -0.141)
OKLCH	oklch(54.11% 0.144 258.7)
XYZ	xyz(16.6121, 15.5700, 52.5716)
Luminance	0.1557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DC1 #C18A36

analogous

#36B2C1 #366DC1 #4436C1

triadic

#366DC1 #C1366D #6DC136

tetradic

#366DC1 #C136B2 #C18A36 #36C144

square

#366DC1 #C136B2 #C18A36 #36C144

split-complementary

#366DC1 #C14436 #B2C136

monochromatic

#1B3761 #295291 #366DC1 #618ED3 #91B0E0

Accessibility & contrast

On white

5.10

#366DC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#366DC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC1

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DC1	#FFFFFF	#000000	##FFFFFF
##366DC1	1.00	5.10	4.11	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4475C4

Deuteranopia (green-blind)

#2A68BF

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366dc1;
/* rgb */ color: rgb(54, 109, 193);
/* oklch */ color: oklch(54.1% 0.144 258.7);

Tailwind

colors: {
  custom: {
    50: '#7e96d4',
    500: '#366dc1',
    950: '#000000',
  },
}

SCSS

$custom: #366dc1;
$custom-light: #7e96d4;
$custom-dark: #000000;

JSON

{
  "hex": "#366dc1",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 193
  },
  "hsl": {
    "h": 216.259,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54111,
    "c": 0.14381,
    "h": 258.7
  },
  "luminance": 0.15572
}

Semantic roles & 50–950 ramp

primary

#366DC1

secondary

#CBB088

accent

#A448E0

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366DC1

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →